NPPES file of Aug 9, 2026

Sumuk Sundaram, M.D.

Internal Medicine Physician · Champaign, IL

Sumuk Sundaram, M.D. is an internal medicine physician with a practice address in Champaign, Illinois, and NPI 1275542912, issued on Aug 5, 2006. Check the license (Illinois 036-101030, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1275542912
Name
Sumuk Sundaram
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
036-101030 IL
Self-reported in NPPES; status is on the state search
Practice location
1801 Windsor RD, Champaign, IL 61822
Phone
(217) 366-5434
Enumerated
Aug 5, 2006
Record last updated
Jul 16, 2024
Medicaid ID
1275542912 1 IL
Medicare enrollment
Enrolled (PECOS I20100714000227); may accept Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1801 Windsor RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Ingrid Antonsen, M.D.Family Medicine Physician1508870601
  2. Maria Baisa, M.D.Family Medicine Physician1326154188
  3. Fathy Basilios, M.D.Pediatrics Physician1992710420
  4. Alan Caspers, R.PH.Pharmacist1144262254
  5. Kathleen Collins, M.D.Internal Medicine Physician1962419432
  6. Ruth Craddock, M.D.Rheumatology Physician1891764643

Verify Sumuk Sundaram in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 036-101030
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Illinois license search

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98% fewer Medicare Part D claims than the average internal medicine physician in 2024

60 Medicare Part D claims for 25 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Sumuk Sundaram60
  2. Specialty average3,176

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Sumuk Sundaram among 7,238 internal medicine physician records in Illinois

Sumuk Sundaram, M.D. is one of 7,238 internal medicine physician records with a practice address in Illinois. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.

  • NPI issued2006 · 7% of these records are older, 61% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 50% of these records are
  • Graduated1987 · median 2003 among the 3,580 with a school on file
  • Record last updated2024 · 47% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

31 internal medicine physician records list a practice address in Champaign

They are 31 of the 2,445 NPPES records with a practice address in Champaign, and 7,238 internal medicine physician records in Illinois.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Andrew Bartlett, D.O.Champaign, IL 618221073520516
  2. Scott Cinnamon, M.D.Champaign, IL 618221851326755
  3. Kathleen Collins, M.D.Champaign, IL 618221962419432
  4. Robert Healy, MDChampaign, IL 618221619984291
  5. Dang Ho, M.D.Champaign, IL 618221669489217
  6. Jennie Hsu-Lumetta, MDChampaign, IL 618221811929219
  7. Sarah Lovinger, MDChampaign, IL 618221003894353
  8. John Peterson, M.D.Champaign, IL 618221003833625

Common questions

What is Sumuk Sundaram, M.D.'s NPI number?

Sumuk Sundaram, M.D.'s National Provider Identifier (NPI) is 1275542912, issued on Aug 5, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Sumuk Sundaram, M.D. located?

The NPPES record lists a practice address at 1801 Windsor RD, Champaign, IL, 61822. Phone: (217) 366-5434. Providers update this record themselves, so call before visiting.

How can I verify Sumuk Sundaram, M.D.'s license?

NPPES lists Illinois license number 036-101030, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Sumuk Sundaram, M.D. prescribe under Medicare Part D?

In 2024, Sumuk Sundaram, M.D. had 60 Medicare Part D claims for 25 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.